Experimental and Numerical Research on Deformation Behavior of Thin-Walled and Large Expansion Ratio Guide Vane Liner in Hydroforming Process

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	Experimental and Numerical Research on Deformation Behavior of Thin-Walled and Large Expansion Ratio Guide Vane Liner in Hydroforming Process
其他题名	Experimental and Numerical Research on Deformation Behavior of Thin-Walled and Large Expansion Ratio Guide Vane Liner in Hydroforming Process
	Cheng Pengzhi 1; Lang Lihui 1; Ge Yulong 1; Ruan Shangwen 1; Duan Xinmin 2; Shao Tianwei 2
	2015
发表期刊	哈尔滨工业大学学报：英文版
ISSN	1005-9113
卷号	22.0 期号:004 页码:1-9
摘要	Some tube hydroforming process tests and further research work were conducted to manufacture hollow guide vane liners（ made of super alloy GH3030）.The relative thickness（ t0/ OD） of the tubular blank is approximately 0. 01,and the maximum expansion ratio（ Dmax/ OD） of the needed part is more than 40%,and the length to diameter ratio of the expansion regionis more than 3. 0. It is very hard to manufacture this kind of ultra-thin-wall,curved axis and large expansion ratio tubular part without fracture and wrinkles. The success of the process is highly dependent on useful wrinkles with appropriate internal pressure and axial feeding. A simplified finite element model and a theoretical model are used for detecting the deformation behavior and forming laws. Further study results demonstrate that the useful wrinkles do not appear at the same time and middle-wrinkles need bigger axial force than tube-end-wrinkles and feeding-wrinkles. The wrinkles can transfer bigger axial force after its wave peak has come into contact with the die inner surface. The thickness thinning rate of the element at the peak is bigger than that at the trough. With the increase of the axial and hoop stress ratio,the critical buckling stress also increases. Microstructure examination results show that the grain size in the maximum thinning zone has been stretched and refined after the large deformation and annealing treatment.The process is feasible and the finished part is qualified.
其他摘要	Some tube hydroforming process tests and further research work were conducted to manufacture hollow guide vane liners（ made of super alloy GH3030）.The relative thickness（ t0/ OD） of the tubular blank is approximately 0. 01,and the maximum expansion ratio（ Dmax/ OD） of the needed part is more than 40%,and the length to diameter ratio of the expansion regionis more than 3. 0. It is very hard to manufacture this kind of ultra-thin-wall,curved axis and large expansion ratio tubular part without fracture and wrinkles. The success of the process is highly dependent on useful wrinkles with appropriate internal pressure and axial feeding. A simplified finite element model and a theoretical model are used for detecting the deformation behavior and forming laws. Further study results demonstrate that the useful wrinkles do not appear at the same time and middle-wrinkles need bigger axial force than tube-end-wrinkles and feeding-wrinkles. The wrinkles can transfer bigger axial force after its wave peak has come into contact with the die inner surface. The thickness thinning rate of the element at the peak is bigger than that at the trough. With the increase of the axial and hoop stress ratio,the critical buckling stress also increases. Microstructure examination results show that the grain size in the maximum thinning zone has been stretched and refined after the large deformation and annealing treatment.The process is feasible and the finished part is qualified.
关键词	tube hydroforming super alloy ultra-thin-wall large expansion ratio useful wrinkle plastic buckling critical buckling stress
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:5524283
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/157698
专题	中国科学院金属研究所
作者单位	1.北京航空航天大学 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Cheng Pengzhi,Lang Lihui,Ge Yulong,et al. Experimental and Numerical Research on Deformation Behavior of Thin-Walled and Large Expansion Ratio Guide Vane Liner in Hydroforming Process[J]. 哈尔滨工业大学学报：英文版,2015,22.0(004):1-9.
APA	Cheng Pengzhi,Lang Lihui,Ge Yulong,Ruan Shangwen,Duan Xinmin,&Shao Tianwei.(2015).Experimental and Numerical Research on Deformation Behavior of Thin-Walled and Large Expansion Ratio Guide Vane Liner in Hydroforming Process.哈尔滨工业大学学报：英文版,22.0(004),1-9.
MLA	Cheng Pengzhi,et al."Experimental and Numerical Research on Deformation Behavior of Thin-Walled and Large Expansion Ratio Guide Vane Liner in Hydroforming Process".哈尔滨工业大学学报：英文版 22.0.004(2015):1-9.